ansrivas / chi-jwt-go

A very naive but almost complete method of jwt-authentication using chi and jwt-go

chi-jwt

Using jwt-go with go-chi:

Install

• Clone the project and run

go get -u github.com/ansrivas/chi-jwt-go

• Create a directory named keys and copy the keys from the repository

• Execute your program as chi-jwt-go -keyPath keys

• Install httpie ( super awesome curl alternative )

• Authenticate to the service:

$ http POST localhost:8080/login username="someone" password="p@assword"

HTTP/1.1 200 OK
Content-Length: 439
Content-Type: text/plain; charset=utf-8
Date: Sat, 28 Oct 2017 01:12:20 GMT
Strict-Transport-Security: max-age=63072000; includeSubDomains

{"token":"some-token"}

• Use token from previous output after Bearer <token_here> in below example.

$ http GET localhost:8080/resource Authorization:"Bearer <token-from-previous-step>"

HTTP/1.1 200 OK
Content-Length: 46
Content-Type: text/plain; charset=utf-8
Date: Sat, 28 Oct 2017 01:16:55 GMT
Strict-Transport-Security: max-age=63072000; includeSubDomains

{"data":"Gained access to protected resource"}

References

1. http://www.giantflyingsaucer.com/blog/?p=5994
2. https://gist.github.com/kiyor/7817632
3. https://github.com/ianmcmahon/encoding_ssh
4. https://github.com/XOfSpades/authentication/blob/69bdcf4131c38bfbe31b26be120ad95f4816a5ae/README.md

Create keys

.p12 format keys

Private key

keytool -genkeypair -keystore jwtsig-test-prv-ks.p12 -storetype pkcs12 -alias jwtsigtest -keyalg RSA -keysize 2048 -sigalg SHA384withRSA -dname "CN=jwtsigtest,OU=Auth Test,O=private purpose,L=Cologne,ST=NRW,C=DE" -validity 3652

Public key

keytool -exportcert -alias jwtsigtest -file jwtsig-test-pub.cert -storetype pkcs12 -keystore jwtsig-test-prv-ks.p12 -rfc

keytool -importcert -alias jwtsigtest -file jwtsig-test-pub.cert -storetype pkcs12 -keystore jwtsig-test-pub-ks.p12

rm jwtsig-test-pub.cert

Convert to .pem format from p12 format, this is what we will use

Private key

openssl pkcs12 -in jwtsig-test-prv-ks.p12 -nocerts -out jwtsig-test-prv-ks.pem -nodes

Public key

Generate certificate:

openssl pkcs12 -in jwtsig-test-pub-ks.p12 -out jwtsig-test-pub-cert.pem

Determine public key from certificate file:

openssl x509 -in jwtsig-test-pub-cert.pem -pubkey -noout > jwtsig-test-pub-ks.pem